Ink cartridge



FIG. 1 is a perspective view of an ink cartridge showing our new design,;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a cross sectional view taken along the line 7—7 of FIG. 3;

FIG. 8 is a cross sectional view taken along line 8—8 of FIG. 2; and,

FIG. 9 is an enlarged cross sectional view taken along line 9—9 of FIG. 3. 

The ornamental design for an ink cartridge, substantially as shown and described. 